JPH0526154Y2 - - Google Patents
Info
- Publication number
- JPH0526154Y2 JPH0526154Y2 JP18294287U JP18294287U JPH0526154Y2 JP H0526154 Y2 JPH0526154 Y2 JP H0526154Y2 JP 18294287 U JP18294287 U JP 18294287U JP 18294287 U JP18294287 U JP 18294287U JP H0526154 Y2 JPH0526154 Y2 JP H0526154Y2
- Authority
- JP
- Japan
- Prior art keywords
- drill
- inner tube
- tube
- sheath
- guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000012937 correction Methods 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 12
- 230000000452 restraining effect Effects 0.000 claims description 10
- 238000009412 basement excavation Methods 0.000 description 5
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18294287U JPH0526154Y2 (enrdf_load_stackoverflow) | 1987-12-02 | 1987-12-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18294287U JPH0526154Y2 (enrdf_load_stackoverflow) | 1987-12-02 | 1987-12-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0190898U JPH0190898U (enrdf_load_stackoverflow) | 1989-06-14 |
| JPH0526154Y2 true JPH0526154Y2 (enrdf_load_stackoverflow) | 1993-07-01 |
Family
ID=31474381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18294287U Expired - Lifetime JPH0526154Y2 (enrdf_load_stackoverflow) | 1987-12-02 | 1987-12-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0526154Y2 (enrdf_load_stackoverflow) |
-
1987
- 1987-12-02 JP JP18294287U patent/JPH0526154Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0190898U (enrdf_load_stackoverflow) | 1989-06-14 |
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